Canteen lid



FIG. 1 is a top, side perspective view of a canteen lid showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken line showing of a wide-mouth canteen and strap is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a canteen lid, as shown and described. 